initialize git and add the remote origin code example

Example 1: git set remote

git remote set-url origin https://github.com/USERNAME/REPOSITORY.git

Example 2: git add remote

git remote add heroku https://git.heroku.com/arrecs.git
git remote -v
-> heroku	https://git.heroku.com/arrecs.git (fetch)
-> heroku	https://git.heroku.com/arrecs.git (push)

git remote remove heroku
git remote -v

Example 3: git init then how to get url

below is used to a add a new remote:

git remote add origin git@github.com:User/UserRepo.git
below is used to change the url of an existing remote repository:

git remote set-url origin git@github.com:User/UserRepo.git